Quick answer
Hero Level Swap exchanges hero EXP levels, not the hero's entire investment package.
It does not function as a star-rank, skill-level, gear, Exclusive Weapon, or Wall of Honor swap.
Timing
Maintained modern schedule:
- Opens Week 2 Day 1 / Season Day 8.
- Remains available through the active season.
Coupon milestones
Maintained current event guidance:
- 600 Virus Resistance → 1 Hero Swap Coupon.
- 2,800 Virus Resistance → another Hero Swap Coupon.
Keep these as maintained-current values unless a future client string directly supersedes them.
Best uses
Level Swap is strongest when:
- a newly acquired hero needs to become combat-ready immediately;
- EXP was invested into a hero the player no longer uses;
- a player wants to move a high level from an obsolete hero into a permanent main-lineup hero.
Important trap
If a hero is swapped down below a level required by one of its unlocked skills, that skill can become temporarily unavailable until the hero is leveled back up.
Before using a coupon
Check these questions:
- Which hero is giving up levels?
- Which hero is receiving them?
- Is the receiving hero permanent/main-lineup?
- Will the donor lose access to any level-gated skill?
- Is the player likely to replace either hero soon?
Then output: Swap now / Save coupon / Low-value swap.